RoadVitals

2003 Mercedes-Benz C240 Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
20
Latest Mar 28, 2024
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
10
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2003 Mercedes-Benz C240, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Airbags517.2%
  • Electrical413.8%
  • Engine26.9%
  • Body & structure26.9%
  • Exterior lighting26.9%
  • Visibility26.9%
  • Tires & wheels26.9%
  • Driver assistance13.4%
  • Seat belts13.4%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

8
reports

From owner reports, verbatim

AFTER FILLING MY GAS TANK, THERE'S A VERY STRONG RAW GAS ODOR INSIDE THE CAR WHILE DRIVING, AND WHEN PARKED. SEEMS STRONGER IN THE BACKSEAT. I SEE THERE'S A EXTENDED WARRANTY FOR THIS ISSUE FROM MERCEDES BENZ ON THE E CLASS FOR MY YEAR (2003). THAT WARRANTY EXTENSION SHOULD HAVE COVERED ALL CLASSES WITH SIMILAR DESIGN OR THE SAME PROBLEM. THE FUMES ARE SO STRONG I AM AFRAID ANY SPARK COULD IGNITE THE VAPORS. I REALLY NEED YOUR HELP! IF MERCEDES BENZ ACKNOWLEDGED PROBLEMS WITH MY YEAR (2003), IT SHOULD INCLUDE MY C CLASS UNLESS THEY CAN ESTABLISH THE ISSUES ARE TOTALLY UNRELATED IN NATURE. THANK YOU FOR YOUR ASSISTANCE.

NHTSA ID 10927575 · filed Nov 22, 2016

I BOUGHT THE CAR YESTERDAY, AND TODAY REALIZED THE CAR IS LEAKING FUEL, POOLING UNDER THE BACK SEAT AND SPILLING OUT UNDER THE CAR. THE PASSENGER HEADLIGHT WILL NOT WORK; WE TRIED 3 BULBS. THE PANEL DISPLAYS A MESSAGE STATING ONE OF THE TAG LIGHTS IS OUT, BUT IT ACTUALLY WORKS.

NHTSA ID 10914366 · filed Oct 6, 2016
All 8 reports naming fuel system

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

5
reports

From owner reports, verbatim

TAKATA RECALL SRS WARNING LIGHT ON

NHTSA ID 10949627 · filed Feb 5, 2017

TAKATA RECALL. CARS WITH THIS ISSUE SHOULD BE PART OF THE RECALL. I HAVE SAME EXACT PROBLEM AS THE 7TH COMPLAINER.CASE #10574681. SRS LIGHT CAME ON WITH 1 MALFUNCTION. THE RESTRAINT SYSTEM. I TOOK IT TO THE WORKSHOP TO HAVE THE SCAN CODES CHECKED. THE CODE READER SAID THAT THERE IS A PROBLEM WITH ONE OF THE AIRBAGS. THE MECHANIC THINKS THAT THE AIRBAGS ARE DISABLED. BUT THE OWNERS MANUAL SAYS THERE IS A POSSIBILITY THAT AN AIRBAG COULD GO OFF WHILE DRIVING. I JUST READ THAT MERCEDES INCLUDED 814000 VEHICLES IN THE RECALL. MY CAR IS NOT INCLUDED. I THINK THAT THIS CAR MIGHT NOT BE SAFE TO DRIVE. WOULD YOU PLEASE HELP OUT AND HAVE AN INVESTIGATION. THANKS IN ADVANCE. (THIS I COPIES AND PASTED FROM A RECENT CONSUMER) I DIDN'T THINK ANYTHING ABOUT CHECKING ON MY MERCEDES UNTIL I GOT A RECALL LETTER FROM BMW 2 DAYS AGO AND THOUGHT WOW. I NEED TO CHECK NO THE BENZ. I HAVE HAD THIS SAME PROBLEM. FIRST THE SRS LIGHT. CODES ARE READING SAFETY RESTRAINT AND WONT TURN OFF. THEN I HAVE MY ESP LIGHT THAT CAME ON AND WHEN READ ON THE COMPUTER, IT HAD READ THAT THIS WAS ALSO SHOWING UP AS A LONG TERM PROBLEM IN THE HISTORY OF THIS CARS COMPUTER SYSTEM. I CAN PULL EVERY PAPER WORK EVER DONE TO THIS CAR. I AM THE SECOND OWNER AND MY CLOSE FRIEND IS THE FIRST OWNER, WHO BOUGHT IT AFTER LAW SCHOOL. I HAVE OWNED IT 5 YEARS. THIS MADE NERVOUS, SO I BOUGHT ANOTHER CAR. A BMW AND KEPT THIS ONE, BECAUSE SHE IS A GREAT CAR. HOWEVER, MERCEDES OR SOMEONE BETTER INVESTIGATE THIS ISSUE THAT SEEMS TO BE RECALLED IN A BIASED MANNER AND IN SAFETY AND DEATH POSSIBILITIES, MERCEDES NEEDS TO TAKE CARE OF THEIR LOYAL CUSTOMERS.MY ENTIRE FAMILY OWNS AND BUYS THESE AND NEVER CHANGED, BECAUSE ALL OF OUR GERMAN MADE AND SHIPPED CARS HAVE BEEN THE BEST SINCE 1980 OF OUR 1ST ONE WE PURCHASED. I BOUGHT A BMW. NEVER AGAIN. PLEASE INVESTIGATE THIS ASAP, THIS IS DANGEROUS. I OWN 2 DANGEROUS EXPENSIVE CARDS.

NHTSA ID 10852304 · filed Mar 29, 2016

Too few reports in this category for a page of its own — they appear in the full complaint list.

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

4
reports

From owner reports, verbatim

I BOUGHT THE CAR YESTERDAY, AND TODAY REALIZED THE CAR IS LEAKING FUEL, POOLING UNDER THE BACK SEAT AND SPILLING OUT UNDER THE CAR. THE PASSENGER HEADLIGHT WILL NOT WORK; WE TRIED 3 BULBS. THE PANEL DISPLAYS A MESSAGE STATING ONE OF THE TAG LIGHTS IS OUT, BUT IT ACTUALLY WORKS.

NHTSA ID 10914366 · filed Oct 6, 2016

TAKATA RECALL. CARS WITH THIS ISSUE SHOULD BE PART OF THE RECALL. I HAVE SAME EXACT PROBLEM AS THE 7TH COMPLAINER.CASE #10574681. SRS LIGHT CAME ON WITH 1 MALFUNCTION. THE RESTRAINT SYSTEM. I TOOK IT TO THE WORKSHOP TO HAVE THE SCAN CODES CHECKED. THE CODE READER SAID THAT THERE IS A PROBLEM WITH ONE OF THE AIRBAGS. THE MECHANIC THINKS THAT THE AIRBAGS ARE DISABLED. BUT THE OWNERS MANUAL SAYS THERE IS A POSSIBILITY THAT AN AIRBAG COULD GO OFF WHILE DRIVING. I JUST READ THAT MERCEDES INCLUDED 814000 VEHICLES IN THE RECALL. MY CAR IS NOT INCLUDED. I THINK THAT THIS CAR MIGHT NOT BE SAFE TO DRIVE. WOULD YOU PLEASE HELP OUT AND HAVE AN INVESTIGATION. THANKS IN ADVANCE.

NHTSA ID 10837624 · filed Feb 22, 2016

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

2
reports

From owner reports, verbatim

HARMONIC BALANCER /CRANK PULLEY WOBBLING VERY BAD . AFRAID IT WILL COME APART AND CAUSE CATASTROPHIC DAMAGE WHILE MY KIDS ARE DRIVING. MERCEDES COVERED THIS PART UNDER SAME ENGINE FAMILY BUT ONLY FROM MODEL YEARS 1998-2001. WOULD LIKE THEM TO TAKE RESPONSIBILITY FOR THE SAME FAULTY PART AS THE OTHERS.

NHTSA ID 11010613 · filed Jul 25, 2017

DEC 2013, WITH "OUR NEW" 2003 MB C240 TRAVELING 55MPH ON CRUISE, I ACCELERATED, "POOF". MY BROTHER DRIVING BEHIND US DISAPPEARED IN A CLOUD OF WHITE SMOKE FROM MY EXHAUST. HE HAD TO PULL OVER, HE COULD NOT SEE THE ROAD. THE "CLOUD OF SMOKE" APPEARS EVERY TIME I USE THE CC OR MAINTAIN A CONSTANT SPEED FOR ANY LENGTH OF TIME. ON A RECENT TRIP OF 2000 MILES, IT CONSUMED 7 QTS OF OIL. WITH ONLY 75K MILES, ITS HARDLY BROKEN IN. THE PROBLEM IS "SLUDGE" BUILT UP INSIDE THE ENGINE BECAUSE OF A "POOR" ENGINE DESIGN. THERE IS/WAS AN "ACTIVE CLASS ACTION SETTLEMENT": IN 2003, BY "O'KEEFE", TO REPAIR/REPLACE ALL 1998-2001 MB MOTORS WITH THIS SLUDGE BUILD UP. DAIMLER CHRYSLER "DID NOT" FIX THE DEFECTS IN THE ENGINE DESIGN, THEY SIMPLY SHIFTED THE "PROBLEM" TO THE OWNERS BY TELLING THEM WHICH BRAND OF OIL TO USE. IF YOU "GOOGLE" MERCEDES WITH "SLUDGE/CONSUMPTION" OR SMOKING, YOU WILL FIND SCORES OF MB VEHICLES NEWER THAN 2001 THAT STILL EXHIBIT THESE SAME SMOKING/ SLUDGE PROBLEMS EVEN THOUGH THEY HAVE COMPLIED WITH ALL OF THE NEW MB MAINTENANCE REQUIREMENTS. SO THE PROBLEM WAS NEVER "FIXED". IT SHOULD HAVE BEEN EXPANDED! THE PROBLEM STEMS FROM THE SLUDGE BUILT UP IN THE MOTOR (INSIDE VALVE COVERS AND OIL DRAIN GALLERY'S). IT DOES NOT ALLOW OIL PUMPED UP TO LUBRICATE THE ROCKERS/ CAMS TO RETURN BACK DOWN TO THE "SUMP". THIS "EXCESS/TRAPPED" OIL HAS NO WHERE TO GO, IT SLOWLY SEEPS INTO THE INTAKE MANIFOLD WHERE IT COLLECTS, WHEN THE VACUUM IS RIGHT, GETS SUCKED INTO INTAKE RUNNERS, SENT TO THE COMBUSTION CHAMBERS, IGNITED AND EXPELLED AS EXHAUST, OVERWHELMING THE CATALYTIC CONVERTERS. THERE ARE 2 PROBLEMS: 1) RIDICULOUS AMOUNTS OF UNWANTED ILLEGAL/EMISSIONS 2) THE IMMEDIATE "PERIL" OF ANYONE TRAVELING BEHIND YOU BEING INSTANTLY "BLINDED" AT HIGHWAY SPEEDS ALL MB VEHICLES WITH SIMILAR MOTORS SHOULD BE IMMEDIATELY TESTED & REPAIRED! *TR

NHTSA ID 10641363 · filed Oct 4, 2014

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

2
reports

From owner reports, verbatim

2003 MERCEDES BENZ C240. CONSUMER WRITES IN REGARD TO RUST ISSUE WITH VEHICLE.

NHTSA ID 11512330 · filed Mar 17, 2023

AS A TIME MY VEHICLE NEEDS TO BE RENEWAL WITH CALIFORNIA DMV , THE RECALL PART HAS NOT BEEN AVAILABLE FROM MERCEDES MANUFACTURE. MERCEDES BENZ DOES NOT PROVIDE ANY FUTURE TIME FRAME FOR THE RECALL PART THAT WILL EFFECTS ON MY VEHICLE REGISTRATION RENEWAL WITH DMV (IT ALSO MEANS MY RENEWAL WITH DMV WILL BE ON HOLD AND I DON NOT HAVE ANY OTHER VEHICLE TO DRIVE IF IT HAPPENS BY THE TIME THE CURRENT VEHICLE REGISTRATION EXPIRED). I ALREADY CONTACTED WITH LOCAL MERCEDES DEALER AND MERCEDES BENZ US BUT THEY CAN NOT DO ANYTHING WITH THE RECALL ANY TIME SOON BEFORE MY CURRENT REGISTRATION ENDS. MY VEHICLE IS CURRENTLY USING AND HAVE NO ISSUE BUT I NEED TO REDEEM A RECALL PART SO I CAN GET A NEW VEHICLE REGISTRATION AT DMV. *TR

NHTSA ID 11326230 · filed May 27, 2020

Too few reports in this category for a page of its own — they appear in the full complaint list.

Exterior lighting

Reports naming headlights, tail lights, turn signals and other exterior lighting.

2
reports

From owner reports, verbatim

I BOUGHT THE CAR YESTERDAY, AND TODAY REALIZED THE CAR IS LEAKING FUEL, POOLING UNDER THE BACK SEAT AND SPILLING OUT UNDER THE CAR. THE PASSENGER HEADLIGHT WILL NOT WORK; WE TRIED 3 BULBS. THE PANEL DISPLAYS A MESSAGE STATING ONE OF THE TAG LIGHTS IS OUT, BUT IT ACTUALLY WORKS.

NHTSA ID 10914366 · filed Oct 6, 2016

I WAS ALWAYS GETTING AN ERROR MESSAGE TELLING ME MY REAR LIGHTS WERE NOT WORKING. I EXPERIENCED AN ELECTRICAL FIRE IN MY TRUNK, WHICH CAUSED THE AIR BAGS TO DEPLOY AND THE ENTIRE LEFT SIDE OF MY CAR CAUGHT FIRE. THE CAR WAS TOTALED. CAR WOULD NOT START, TRUNK WOULD NOT OPEN. CAR WAS TOTALED BY DEALER AND INSURANCE COMPANY. I KNOW THERE IS A RECALL NOTICE FOR NEW C CLASS CARS, BUT BECAUSE OF WHAT I EXPERIENCED, I BELIEVE OLDER MODELS MAY ALSO HAVE THE SAME PROBLEM. *TR

NHTSA ID 10586324 · filed May 3, 2014

Too few reports in this category for a page of its own — they appear in the full complaint list.

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

2
reports

From owner reports, verbatim

2003 MERCEDES BENZ C240. CONSUMER WRITES IN REGARDS TO SUNROOF GLASS BONDING SAFETY RECALL. *LD THE CONSUMER STATED THE ROOF CONTIUOUSLY BECAME RUSTED DUE TO A WATER LEAK. *JS

NHTSA ID 11361816 · filed Oct 6, 2020

TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ C240. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V918000 (VISIBILITY) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE VEHICLE WAS TAKEN MERCEDES-BENZ OF CHARLOTTESVILLE (1381 RICHMOND RD, CHARLOTTESVILLE, VA 22911, (434) 290-4156) WHERE IT WAS CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA ID 11326807 · filed Jun 1, 2020

Too few reports in this category for a page of its own — they appear in the full complaint list.

Tires & wheels

Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.

2
reports

From owner reports, verbatim

The PRINX tires and the dealer - Mavis Tires, Auburn Avenue, Columbus, Georgia, are equally to blame for the flat I had in traffic endangering myself and other motorists with Brand New Prinx Tires, and also the skid I had at an intersection in Columbus Georgia. It's the old story of Chinese aftermarket parts that do not fit causing accidents. Prinx pushes Mavis to make sales of their 205/55/16 even though my Mercedes C240 door panel sticker shows the brands Mercedes lists for safety as in climates averaging 39 degrees and above for traction size 225/50/16 has to be placed in the rear (205 only on the front) and I did by buying more tires I didn't need and that stopped the skidding. MAVIS also installed the Prinx tires pretending to have replaced the dry-rotted stems, I had a flat at an intersection endangering other drivers, my wheel was also damaged. I have replaced the other stems and the rear tires which did not fit and had poor traction, but MAVIS will not exchange with me for a proper fit. I think Mavis should be fined as they are endangering motorists by not replacing dry-rotted stems to pinch pennies and deliberately placing tires on the rear despite the door sticker warning for size and fit and brand. The Prinx tires are also low on the ground like a go-cart, making the car harder to maneuver. The Better Business Bureau has so many complaints against Mavis Tire, home office New York, that I didn't bother. Air Force Veteran [XXX] , [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11579939 · filed Mar 28, 2024

THE BACK SIDE OF THE TIRES CRACK OPEN AROUND THE RIM.

NHTSA ID 11099453 · filed Jun 3, 2018

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

1
report

From owner reports, verbatim

TAKATA RECALL. CARS WITH THIS ISSUE SHOULD BE PART OF THE RECALL. I HAVE SAME EXACT PROBLEM AS THE 7TH COMPLAINER.CASE #10574681. SRS LIGHT CAME ON WITH 1 MALFUNCTION. THE RESTRAINT SYSTEM. I TOOK IT TO THE WORKSHOP TO HAVE THE SCAN CODES CHECKED. THE CODE READER SAID THAT THERE IS A PROBLEM WITH ONE OF THE AIRBAGS. THE MECHANIC THINKS THAT THE AIRBAGS ARE DISABLED. BUT THE OWNERS MANUAL SAYS THERE IS A POSSIBILITY THAT AN AIRBAG COULD GO OFF WHILE DRIVING. I JUST READ THAT MERCEDES INCLUDED 814000 VEHICLES IN THE RECALL. MY CAR IS NOT INCLUDED. I THINK THAT THIS CAR MIGHT NOT BE SAFE TO DRIVE. WOULD YOU PLEASE HELP OUT AND HAVE AN INVESTIGATION. THANKS IN ADVANCE. (THIS I COPIES AND PASTED FROM A RECENT CONSUMER) I DIDN'T THINK ANYTHING ABOUT CHECKING ON MY MERCEDES UNTIL I GOT A RECALL LETTER FROM BMW 2 DAYS AGO AND THOUGHT WOW. I NEED TO CHECK NO THE BENZ. I HAVE HAD THIS SAME PROBLEM. FIRST THE SRS LIGHT. CODES ARE READING SAFETY RESTRAINT AND WONT TURN OFF. THEN I HAVE MY ESP LIGHT THAT CAME ON AND WHEN READ ON THE COMPUTER, IT HAD READ THAT THIS WAS ALSO SHOWING UP AS A LONG TERM PROBLEM IN THE HISTORY OF THIS CARS COMPUTER SYSTEM. I CAN PULL EVERY PAPER WORK EVER DONE TO THIS CAR. I AM THE SECOND OWNER AND MY CLOSE FRIEND IS THE FIRST OWNER, WHO BOUGHT IT AFTER LAW SCHOOL. I HAVE OWNED IT 5 YEARS. THIS MADE NERVOUS, SO I BOUGHT ANOTHER CAR. A BMW AND KEPT THIS ONE, BECAUSE SHE IS A GREAT CAR. HOWEVER, MERCEDES OR SOMEONE BETTER INVESTIGATE THIS ISSUE THAT SEEMS TO BE RECALLED IN A BIASED MANNER AND IN SAFETY AND DEATH POSSIBILITIES, MERCEDES NEEDS TO TAKE CARE OF THEIR LOYAL CUSTOMERS.MY ENTIRE FAMILY OWNS AND BUYS THESE AND NEVER CHANGED, BECAUSE ALL OF OUR GERMAN MADE AND SHIPPED CARS HAVE BEEN THE BEST SINCE 1980 OF OUR 1ST ONE WE PURCHASED. I BOUGHT A BMW. NEVER AGAIN. PLEASE INVESTIGATE THIS ASAP, THIS IS DANGEROUS. I OWN 2 DANGEROUS EXPENSIVE CARDS.

NHTSA ID 10852304 · filed Mar 29, 2016

Too few reports in this category for a page of its own — they appear in the full complaint list.

Seat belts

Reports naming seat belts, buckles, retractors and pretensioners.

1
report

From owner reports, verbatim

CERTIFIED PRE-OWNED DEALERSHIP BOUGHT MERCEDES BENZ 2003 C-240 4-MATIC. PURCHASED WITH 41K MILES IN 2008. APPROXIMATELY 6/2013 THE SRS LIGHT CAME ON STATING 1 MALFUNCTION ON THE CLUSTER RELATING TO RESTRAINT SYSTEM. ADVISED OF NUMEROUS CASES OF THIS DEFECT IN MODEL YEAR 2003. DUE TO WARRANTY EXPIRATION THE ISSUE HAS YET TO HAVE PROFESSIONAL DIAGNOSTICS. THE LIGHT AND CLUSTER NOTIFICATION REMAINS TO DATE AT 76K MILES. *TR

NHTSA ID 10574681 · filed Mar 25, 2014

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .